Ephrietes

Takeshi Mori was just your average high school slacker, coasting through life with a steady diet of cup noodles and mediocre test scores. But his world is turned upside down when he bumps into his ex-girlfriend, Rika Kurobane—who casually reveals that she’s now the Demon Queen. And that’s not even the craziest part.

Dragged into the Demon Realm, Takeshi discovers he possesses untapped magical powers that make him a key player in the fight to restore balance. The problem? The Demon Realm is in chaos, with rival Demon Generals battling for Rika’s throne, monstrous creatures lurking around every corner, and a political landscape messier than their breakup.

To make matters worse, Rika is as bossy and unpredictable as ever, forcing Takeshi into the role of her reluctant “servant” while insisting he’s the only one she can trust. As Takeshi trains to control his powers, he’s thrust into battles, schemes, and the awkwardness of working with an ex who still knows exactly how to push his buttons.

Can Takeshi survive the dangers of the Demon Realm, master his newfound abilities, and maybe—just maybe—help Rika reclaim her throne? Or will their past (and her villainous tendencies) tear them apart for good?

Packed with explosive battles, snarky banter, and just a touch of romantic tension, My Ex-Girlfriend Became the Demon Queen?! is a light novel adventure that proves love and war are equally complicated.

Table of My Ex-Girlfriend Became the Demon Queen?!

Table of contents

Volume 1

Volume 2 :My Ex-Girlfriend Became the Demon Queen?! Volume 2